// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion If the last statement of a function is not a return statement,
/// the statement return; is implicitly appended to the function body.
///
/// @description Checks that the statement return; is implicitly appended
/// to the function body.
///
/// @author msyabro
/// @reviewer kaigorodov

import "../../Utils/expect.dart";

func() {}

f() {
  int x = 1;
  int y = x + 1;
}

void g() {}

main() {
  Expect.equals(null, func());
  Expect.equals(null, f());
  g();
}
